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ENERGY - 6TH GRADE, SECTION 1 |
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The GEOTHERMAL page needs to include but is not limited to the information below:
Cited Sources
(see Home page for MLA citation generator) http://www.wikipedia.org/http://tonto.eia.doe.gov/kids/energy.cfm?page=geothermal_home-basics
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www.wiki.com/
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this picture discribes the pumps and machines needed to harness the geothermal energy.
What is Geothermal Energy?
Geothermal Energy is the heat energy that is produced by natural processes deep inside the Earth. It can be taken from places like the reservoirs of hot water below the ground, from hot springs even from breaking open the rock itself. The word Geothermal comes from the Greek words Geo (which means Earth) and Thermos (which means Heat).
How can you change it to Electrical Energy?
Geothermal Enegy is transformed into Electrical Energy by taking the steam from Geothermal Energy and using it to turn giant turbines which produces Electrical Energy.
What are the advantages and disadvantages of Geothermal Energy?
The advantages are: it is better to use geothermal energy then fossil fuels because it is a renewable resource and its one of the best natural resources around. An example is drilling deep holes into the earths crust and pumping cold water threw one end and then by the time it rises back to the surface the water can be hundreds of degrees celcius which you can use as steam to drive a turbine which drives a generator that creates power. The disadvantages are: not everywhere has hot rocks close enough to the surface, the drill shaft sometimes has to be many km deep (This is expensive and not easy to do. The drilling may cause rock instability in the region), after some years the hot rocks may cool down and need a resting period before they heat up again.
How does Geothermal Energy relate to your everyday life?
If you ever go to a heating spa you should know that it is caused by geothermal energy. Also there are an aditional 28 gigawatts of direct geothermal heating capacity in district heating, space heating, spas, and industrial processes.
These are the different temperatures as you go deeper into the Earth.
Energy Facts
Order from highest energy usage to least.
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